81905131

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{34313}}^1$

素因数の和:34362

約数の個数: 16

約数和(自身を含む): 105412608

約数和(自身を除く): 23507477

約数列:

[1, 7, 11, 31, 77, 217, 341, 2387, 34313, 240191, 377443, 1063703, 2642101, 7445921, 11700733, 81905131]

約数ペア:

[(1, 81905131), (7, 11700733), (11, 7445921), (31, 2642101), (77, 1063703), (217, 377443), (341, 240191), (2387, 34313)]